In this video we look at an example of conducting a Chi-square test. We set up the null and alternative hypotheses, determine the significance level, calculate expected frequencies and the Chi-square statistic and use statistical tables to dete

Calculation of probabilities in a Poisson distribution, using tables - Part 2 (StatsCasts)

Jan 26th, 2017 6m 25s

In this video we look at how to use statistical tables to calculate probabilities in a Poisson distribution. This includes an example of using the table for the probability density function to determine the probability the random variable is eq

Calculation of probabilities in a Poisson distribution, using tables - Part 1 (StatsCasts)

Jan 26th, 2017 6m 39s

Calculation of probabilities in a Binomial distribution, using tables (StatsCasts)

Jan 26th, 2017 7m 22s

In this video we look at how to use statistical tables to calculate probabilities in a Binomial distribution. This includes an example of using the table for the probability density function to determine the probability the random variable take

Deciding if a distribution is Binomial or Poisson (StatsCasts)

Jan 23rd, 2017 7m 22s

In this video we look at how to decide for a given scenario (worded problem) if the distribution described is a Binomial distribution or Poisson distribution and whether its probability distribution function or its cumulative distribution funct

Using inverse t table for two-tailed t test (StatsCasts)

Jan 22nd, 2017 6m 35s

An introduction to and example of using an inverse t distribution table to find the critical value of t for a two-tailed t-test.

Using standard normal distribution tables - Part 2 (StatsCasts)

Jan 22nd, 2017 7m 56s

An example of using a standard normal distribution table to find the area under the standard normal curve to the right of a specified value of z and an example of using it to find the area under the standard normal curve between two values of z

Using standard normal distribution tables - Part 1 (StatsCasts)

Jan 22nd, 2017 4m 57s

An introduction to reading a standard normal distribution table, with an example of how to use it to find the area under the standard normal curve to the left of a specified value of z.

One sample z test using critical values (StatsCasts)

Jan 22nd, 2017 8m 34s

Example of carrying out a one-sample z-test including hypotheses, signficance level, finding calculated value of t and comparing to critical value of z, making a decision and conclusion.

One sample t-test (StatsCasts)

Jan 22nd, 2017 10m 5s

Example of carrying out a one-sample t-test including hypotheses, signficance level, finding calculated value of t and comparing to critical value of t, making a decision and conclusion.

Background to test statistic and p value in z test (StatsCasts)

Jan 22nd, 2017 8m 26s

An example of the step by step process used to conduct a z test for the mean, with emphasis on the interpretation of the test statistic (z) and the p-value.

Using inverse t table for one tailed t test (StatsCasts)

Jan 22nd, 2017 7m 30s

An introduction to and example of using an inverse t distribution table to find the critical value of t for a one-tailed t-test.

Hypotheses for one sample test for the mean (StatsCasts)

Jan 22nd, 2017 6m 43s

Examples of writing null hypothesis and alternative hypothesis both in words and symbols, for a one-sample hypothesis test for the mean. Notion of one-tailed and two-tailed tests are introduced.